Case for incandescent-electric-lamp sockets.



A. WEBER, SR.

CASE FOR WNCANDESCENT ELECTRIC LAMP SOCKETS.

APPLICATION FILED AUG.4, 190s. RENEWED APR. 9, 1914.

1,136,383, Patented Apr. 20, 1915.

lPIV EP TEIEK WITNEEIEI 66 the shaft of the key,

UNITED STATES PATENT OFFICE.

AUGUST WEBER, SR., 0]? SCHENECTADY, NEW YORK, ASSIGNOR T0 WEBER ELECTRIC COMPANY, OF SCHENECTADY, NEW YORK, A CORPORATION OF NEW YORK.

CASE FOR INCANDESCENT-ELECTRIC-LAMP SOCKETS.

Patented Apr. 20, 1915.

Application filed August 4, 1906, Serial No. 329,153. Renewed April 9, 1914. Serial No. 830,793.

Toall whom it may concern Be it known that I, AUGUST WEBER, Sr., a citizen of the United States, residing at Schenectady, county of. Schenectady, and State of New York, have invented certain new and useful Improvements in Cases for Incandescent- Electric-Lamp Sockets of which the followingis a specification.

The invention relates to such improvements and consists of the novel construction andcombination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification.

Similar characters refer to similar parts in the several figures therein.

Figure l of the drawings is a view in side elevation'of an incandescent electric lamp socket provided with my improved case. Fig. 2 is a similar view of the cap of the case detached. Fig. 3 is a horizontal cross section of the cap, taken on the broken line 33 in Fig. 2. Fig. 4 is a view in side elevation, partly in vertical section, of the shell of the case ina position at right angles tothat seen in Fig. 1. Fig. 5 is a horizontal cross section of the case, taken on the broken line 55 in Fig. 1. Fig. 6 is a view in side elevation of a modified form of cap. Fig. 7 is a horizontal cross section of the same, taken on the broken line 7-7 in Fig. 6. Fig. Sis a view similar to Fig. 4, showing a modified form of construction of the shell.

The principal object of my invention is to provide for easily and securely connecting together, and for easily separating when desired, the cap and shell of a sheet-metal case, such for example, as the case of an incandescent electric lamp socket.

Other. objects of the inventionjwill appear in connection with the following description.

Referring to the drawings wherein the invention is shown in preferred form, 1, represents the shell or body and, 2,"the can, to-- gether comprising the case rpr .an ordinary incandescent electric lamp socket.

The shell and cap are forrned of sheet; brass or other sheet-metal" and are adapted" to be applied, one to the other. telescopically.

For use with a key-socket, the shell is provided with an open" slot, 3, through which 4, projects... In the keyonet fashion,

less type of socket, said slot may be omitted, or it may be retained of full or reduced dimensions to permit the compression of the shell, if desired to facilitate the separation of the interlocking parts of the shell and cap.

The shell is provided, near its larger end, with one or more ofi'sets, 5, which may be either displaced portions of the sheet-metal itself, as shown in Figs. 4 and 5, or studs riveted upon the shell, as shown in Fig. 8. The inner portions of the sides of these offsets are approximately at right angles to the body of the. shell, and their outer ends are slightly beveled or tapered to facilitate the guiding of the parts in looking the cap, 2, and unlocking it from the shell. The cap is provided, at a point or points correspond ing with the location of the offsets, 5, with an aperture or apertures, 6, cut therein adapted to receive said ofiset or the respective ofi'sets.

As shown in Figs. 1, 2 and 3, the cap is provided, at one side of the aperture, 6, with .a similar aperture, 7, the two apertures being connected by a slot, 8, which tapers gradually from the aperture, 7, to the aperture, 6, whereat it is of less width than the diameter of said aperture and of the offset, 5, leaving the aperture, 6, inclosed by a wall formed by the cut edge of the sheetmetal, extending considerably more than 180 degrees around the circumference of the aperture, whereby, when one of the offsets, 5, is seated in one of the apertures, 6. its removal from said aperture along the slot, 8, is resisted by out edges of sheet-metal at the points, 9, in the path of perpendicular portions of the offset 5. erture, 7 to the edge of the cap is a groove formed by outwardly displacing the sheetmetal, as at 10.

In applying the cap to the shell, the groove, 10, is brought into line with an offset, 5, and the parts are interlocked in bayby forcing the cap, first telescopioally upon the shell, causing the offset, 5, to traverse the groove, 10, and enter the aperture, 7, and then rotatively moving the cap upon the shell to cause the beveled end of the offset, 5, to travel along theslot, 8, until it enters the aperture 6. The offset, 5, being slightly beveled will center itself in the slot, 8, same time forcing outwardly the sheet-metal and be guided thereby, at the I Leading from the apwallsbordering said slot until the offset is seated in-the aperture, 6, whereupon the resiliency ofthe sheet-metal walls ofrthe slot,

v actlon;

shaped groove 6, the inner end of said groove being of less directl f'To separate. the cap from the-f shefl, the "cap is first rotatively movednn theopposite 'on and then telescopically se arated from the shell. ,The removal of t e cap can be accomplished by compressing the shell b the fingers of one hand, whilethe cap is rotatively moved by the other hand.

In the construction shown in .Figs. 6 and 7, the aperture, 7, and slot, 8, are omitted, .the cap being rovided with a bayonetormed by displacing the sheet-metal, as. shown at, 12, the outer end of said groove-terminating at the edge of the shell,"and its inner end at the aperture,

width than the diameter ofthe aperture 6, and of the ofi'set 5. The operation of connecting and disconnecting-the cap and shell in this construction is the same as above described.

-The edge of the shell is preferably provided with a notch, 13, at the mouth of the v groove, which notch is adapted to receive the ofl'set, 5, and serve as a guide in applying the cap to the shell.

he cutsheet-metal walls of the seat for 38 the locking projection arerigid in that they do not yleld to either rotative strain or pulling-a art strain, but ofier positive resistancet ereto, which prevents separation I of the case-members until the inner member manually compressed. -Imakeno specific claim herein to the form of hollow pressed-out projection, 5, shown in Figs-'4 and 5' as this feature forms the -'subject-matter o a division of this application, filed December 19, 1914, Serial No. .878,189. I

{What I claim as new and desire to secure "by Letters Patent is '1. case comprising a pair of sheetmetal members, one adapted to telescopically receive the other, one of said members having an offset the outer end of which is of .Qre'duced dimensions, and the other of said Iihembers being provided with-a seat adapted to receive the body of said offset, and with "a continuous bayonet guide-way for the reduced end of said offset extending from the edge of said other member to said seat whereat it terminates of'a width less thaii the width of'the body of said offset.-

2. A case comprising a pair of sheetmeta members, one adapted to telescopically eceive the other, provided with means,

for guiding the members telescopically to-' being provided with an aperture through its wall adapted to automatically interlock with said projection as the members are telescoped together, and presenting rigid cut-sheet- 'to the wall of the member, the other member a metaledges to the perpendicular sides of;

said projection in a direction toprevent escopic' separation and relative rotation 'of the interlocked members, wherebylsepara I tion ofv said interlocked members positively prevented until the inner member. is

manually compressed.

3. A case comprising a pair of sheetmetal members, one adapted to telescopically receive the other, the inner of said members being compressible, one of said .members having a projection riveted thereupon with sides perpendicular to the wall of said member, the other of said members being provided with an aperture through its wall adapted to interlock with said projection, and presentin rigid cutshee't-metal edges to the perpen icular portion of said projec-' tion in a direction to prevent relative rotation of the interlocked members until the inner member is manually compressed.

4. A case comprising a pair of sheetmetal members, one adapted to telescopically receive the other and automatically inter-' lock therewith, one of said members ,bl-ng provided a perforation through ass-a1] having rigid cut-sheet-metal walls, the other of .said members having a projection riveted thereupon, said projection havinga beveled end whereby it is adapted to automatically interlock with said perforation as the members are telescoped together, and having perpendicular sides engageable with the rigid cut-sheet-metal walls of said perforation in a direction to pbsitively resist' telescopic movement of separation and relative. rotation of the interlocked members.

In testimony whereof, I have hereunto set my hand this 31st da' pf'July 1906.

f AU UST WEBER, SR. ,j Witnesses:

FRANK O. CURTIS, J. LANSING FULLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G. 

